Well i dont know about the nady, but i have a BP200, and i have to say that it isnt great. Some of the effects are kind of cool but there isnt much i would ever actually use. The ones that I would or did use didnt sound great, so I've switched to single analog effects. Also, one thing, I've had my bp200 for 9 months, and it actually just stopped working the other day. I plug it in and connect everything and nothing happens. Oh well, I wasn't really using it much anyway.

I don't have experience with that particular Nady model. My old wireless, from the mid-90's, worked well with guitar. But with the bass, there was a very noticable lag. I can't really explain why that was. It may have been that it was older technology and the unit wasn't spec'd for bass.

Look for X-wire, or maybe the Sennheiser Digital (based on X-wire technology).